Asked by
Angel Stickers and Planners
on Nov 10, 2024
Verified
If the sample mean is 20,the population average is 10,and the standard error of the mean is 2,what is the observed z value?
A) -5
B) 5
C) 0
D) 50
Standard Error
Standard error measures the precision of a sample mean estimate of a population mean, indicating how much the sample mean is expected to fluctuate from the true population mean.
Population Average
The mean value of a given characteristic within an entire population.
Sample Mean
The average of all observations in a sample, calculated by summing the values and dividing by the sample size.
- Familiarize yourself with the foundational concepts and math procedures integral to a one-sample Z-test.
- Work out the standard error of the mean (SEM) and acknowledge its significance in Z-test operations.
Verified Answer
LT
Learning Objectives
- Familiarize yourself with the foundational concepts and math procedures integral to a one-sample Z-test.
- Work out the standard error of the mean (SEM) and acknowledge its significance in Z-test operations.